试题详情

ZPW-2000A型无绝缘移频自动闭塞系统空芯线圈电阻值R=()

A15mΩ±5.5mΩ

B15.5mΩ±5.5mΩ

C18mΩ±5.5mΩ

D18.5mΩ±5.5mΩ